Churn.



PATENTED NOV. 19, 1907.

A. M. McKOY.

GHURN.

APPLIUATYION rum) MAY 1. 1907.

2 SHEETS-8HEET 1.

ide/2 No. 871,732. PATENTED NOV. 19, 1907.

A. M. MoKOY. GHURN.

APPLICATION FILED MAY 1. 1907.

2 SHEETS-SHEET 2.

5] wuemloz ALBERT M. MeKOY, OF STONEWALL, INDIAN TERRITORY.

CHURN.

Specification of Letters Patent.

Patented Nov. 19, 1907.

Application filed May 1.1907. Serial 110.371.1336.

To all whom it may concern:

Be it known that I, ALBERT M. McKoY, a citizen of the United States ofAmerica, residing at Stonewall, in District 16, lndian Territory, haveinvented new and useful Improvements in Churns, of which the followingis a specification.

This invention relates to churns, and one of the principal objects ofthe same is to provide simple and efficient mechanism for operating thechurn, said mechanism comprising means for lifting the dasher rodagainst the tension of a spring which will force the dasher roddownward, said mechanism being provided with a weight for lifting thedasher rod against the tension of the spring.

Another ob jeet of the invention is to provide simple, reliable andefficient means for actuating churn dashers by means of a compoundspring and weight mechanism.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawings, in which:

Figure 1 is a side elevation of a churn oper ating mechanism made inaccordance with my invention. Fig. 2 is a plan view of the same. Fig. 3is a detail section showing the rack bar and its connected parts. Fig. 1is a detail view showing a portion of the rack bar and, the mutilatedpinion for moving the bar. Fig. 5 is a detail view showing the stopmechamsm.

Referring to the drawings for a more particular description of myinvention, the numeral 1 designates a bracket adapted to be secured to arigid support by means of belts or screws 2, and extending horizontallyfrom the bracket 1 is a pair of parallel arms 3, 1, and a shorter arm 5located at some distance therefrom. A shaft 6 is journaled in the arm 3and extends through the arms -1 and 5, and is provided with a crank 7fitted to the squared outer end thereof outside the arm 5. Secured tothe shaft 6 is a winding drum 8 carrying a ratchet wheel E) at one endthereof, and fitted to the shaft 6 at the side of the ratchet wheel 9 isa spur gear wheel 10 which carries a pawl 11 adapted to engage the teethof the ratchet wheel 9. The gear wheel 10 meshes with a pinion 12mounted on a shaft 13 journaled in the arms 3 and 4, said shaft carryinga mutilated pinion 14, the gear teeth of which are removed from aroundthe periphery of the same at one side thereof, as shown in Fig.- 1.

Secured to the drum 8 is a rope or cable 15, and connected to the lowerend of said rope or cable is a weight 16. Connected to the outer ends ofthe arms 3 and 1 is an upright 17, and extending from the upper ends ofsaid upright is a guide bearing 18 through which the upper end of therack bar projects. The rack bar 19 is provided with lateral flanges 20fitted to slide in guides 21 secured inside the arms 3, 1. At the lowerend of the rack bar, the dasher rod 2" is connected, said dasher rodadapted to be reciprocated in the churn 23. A spring 2 1 surrounds theupper portion of the rack bar, said spring being sustained by means of acollar 25 adj ustably secured upon the shank of the rack bar by means ofa set screw 26.

()n the end of the shaft 15 is a cam 27, and mounted to slide in keepers28 secured to the arm 3 is a sliding stop bar 29, said bar having at itslower end a roller 30 projecting therefrom in the path of movement ofthe cam 27. A spring $1- is secured at one end to the bar 29 and at theopposite end to one of the keepers 28.

The operation of my invention may be briefly described as follows: \Vhenthe rope or cable 15 has been wound upon the drum 8 until the weight 16is in its uppermost position, and the pawl 11 is engaged with theratchet teeth of the ratchet E), as the weight descends, the gear wheel10 rotates the shaft 13, and the mutilated gear 1 1; raises the rack bar11) against the tension of the spring 2 1:. When the smooth untoothed.portion of the gear 1+1 occupies a position adjacent to the teeth of therack bar 19, said rack bar is pushed downward by the compressed spring24. At this time the cam 27 is brought .into contact with the roller 30on the bar 29, thus preventing the rotation of the shaft 13 until afterthe rack bar has descended, when the arm 32 secured to the rack barcomes in contact with the upper end of the bar 29 and. pushes itdownward until the roller 30 is out of the way' of the cam 27, afterwhich the shaft 13 is again rotated by the weight 16 de-' scending. Thebar 25) is then moved upward by the spring 31.

' From the foregoing it will be obvious that a churn operating mechanismmade in ac cordance with my invention is of comparatively simpleconstruction; will operate efficiently for its purpose; that owing tothe length of the rope or cable 15, the dasher rod is reciprocated manytimes after the rope has been wound upon the drum 8; that the mechanismis composed of comparatively few parts, and is not liable to get out oforder.

Having thus described the invention, what I claim is:

1. A churn operating mechanism comprising a frame, a winding drumconnected to the frame, a rope or cable connected to the drum andprovided with a weight, a gear wheel on the drum shaft, a shaft mountedin the frame and provided with a pinion engaging the gear wheel, amutilated gear on said shaft, a rack bar engaged by said mutilated gear,a dasher rod secured to said rack bar, a spring for depressing the rackbar and dasher rod, and means for preventing the rotation of the drumduring the downward movement of the rack bar and dasher.

2. In a churn operating mechanism, the combination of a rack barconnected to the churn dasher, a spring for moving the rack bardownward, a drum, a'c'able connected to the drum and provided with aweight, means for winding the weight up toward the drum, and connectionswhereby the weight will raise the rack bar, and means for preventing therotation of the drum during the downward movement of the rack bar.

3. In a churn operating mechanism, the combination of a rack bar, aspring for forcing the rack bar downward, gravity devices for moving therack bar upward, and means for preventing the rotation of the gravitydevices during the downward movement of the rack bar.

In testimony whereof, I alHX my signature in presence of two witnesses.

ALBERT M. McKOY.

I/Vitnesses:

W. E. MOONEY, H. B. MARTIN.

